Question

The ages of rahul and haroon are in the ratio 5:7. 4 years later the sum of their ages will be 56 years. what are their present ages.

Answer 1

According to the question,

 

[Multiplying both sides by 2]

 

 

[Adding both sides ]

 

 

Hence, the required number is 

Answer 2

let there ages 5x and 7x
after four years the ages will be 5x +4 and 7x +4 make equation
5x + 4 + 7x + 4 = 56
x = 4
age of Rahul is 20
age of haroon is 28